1.不管不顾，最简单的方式转换成最常用的H.264格式的MP4
ffmpeg -i input.avi ouput.mp4为了支持在浏览器中直接播放，应当开启faststart
ffmpeg -i input.avi -movflags +faststart ouput.mp42.转换成HEVC/H.265，因为要制定编码，实际上是指定编码器，所以可以选择最通用的软件编码器libx265
ffmpeg -i input.avi -c:v libx265 ouput.mp4如果支持的话，也可以使用硬件编码器，比如hevc_qsv或者hevc_nvenc。不建议使用qsv，我这里尝试使用会报错，挺麻烦的，懒得查为什么报错了，另外据说qsv质量是比较差的。
ffmpeg -i input.avi -c:v hevc_sqv ouput.mp4我测试的电脑能够真正支持的编码器有
libx264 libx264rgb h264_mf h264_nvenc h264_qsv测试转换一个接近20分钟的rm文件到mp4，结果如下.可以看出qsv压缩率太差，而x264和nvenc开启-profile:v high没有什么效果，x264压缩效果最好，h264_mf压缩效果比x264差一些，但是速度快不少，而我这里没有支持h264_amf编码器，所以没有测试。使用硬件编码的时候CPU占用确实是很小的，当时考虑到输出文件太大，建议在存档视频的时候还是采用x264或者x265效果比较好，夜里慢慢编码呗。还有个 libx264rgb 测试太慢了，而且也不是常见的编码方式，网上介绍说编码生成的格式不常用，就别用了。
-a---- 2022/10/9 18:02 152978117 01-h264qsv.mp4
-a---- 2022/10/9 18:09 39812537 01-h264_mf.mp4
-a---- 2022/10/9 17:43 17287444 01-libx265.mp4
-a---- 2022/10/9 17:26 90072626 01-nvenc-high.mp4
-a---- 2022/10/9 17:17 89633621 01-nvenc.mp4
-a---- 2022/10/9 17:26 31222093 01-x264-high-4.mp4
-a---- 2022/10/9 17:18 31222068 01-x264.mp4
-a---- 2003/1/24 19:27 65550389 01.rm3.从不同文件中合并音轨、视频流信道。下面的命令将第一个输入文件（-map 0:v:0 中的第一个0）的视频流（中间的v）的第一个流（后一个0），以及第二个输入文件的音频流（中间的a）取出，放到输出文件中。
ffmpeg -i input-1.avi -i input-2.avi -map 0:v:0 -map 1:a:0 output.mp4如果希望不改变编码方式，仅仅提取和更换视频、音频流，那么可以尝试指定编码方式为copy，即直接复制数据，不转换编码，这样会非常快，几乎相当于复制文件的速度。
ffmpeg -i input-1.mp4 -i input-2.mp4 -c copy -map 0:v:0 -map 1:a:0 output.mp4通过修改视频信息快速旋转视频画面方向
$INPUTVIDEO='input.mp4'
$OUTPUTVIDEO='output.mp4'
ffmpeg -i $INPUTVIDEO -metadata:s:v rotate="-90" -codec copy $OUTPUTVIDEO查看ffmpeg支持的编码/编码器
ffmpeg -codecs我这里显示的结果如下，看来我下载的ffmpeg默认支持硬件编码，挺不错。其中H.264和H.265编码部分已经加粗，方便查阅。
Codecs:
D..... = Decoding supported
.E.... = Encoding supported
..V... = Video codec
..A... = Audio codec
..S... = Subtitle codec
..D... = Data codec
..T... = Attachment codec
...I.. = Intra frame-only codec
....L. = Lossy compression
.....S = Lossless compression
-------
D.VI.S 012v Uncompressed 4:2:2 10-bit
D.V.L. 4xm 4X Movie
D.VI.S 8bps QuickTime 8BPS video
.EVIL. a64_multi Multicolor charset for Commodore 64 (encoders: a64multi )
.EVIL. a64_multi5 Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 )
D.V..S aasc Autodesk RLE
D.V.L. agm Amuse Graphics Movie
D.VIL. aic Apple Intermediate Codec
DEVI.S alias_pix Alias/Wavefront PIX image
DEVIL. amv AMV Video
D.V.L. anm Deluxe Paint Animation
D.V.L. ansi ASCII/ANSI art
DEV..S apng APNG (Animated Portable Network Graphics) image
D.V.L. arbc Gryphon's Anim Compressor
D.V.L. argo Argonaut Games Video
DEVIL. asv1 ASUS V1
DEVIL. asv2 ASUS V2
D.VIL. aura Auravision AURA
D.VIL. aura2 Auravision Aura 2
DEV.L. av1 Alliance for Open Media AV1 (decoders: libdav1d libaom-av1 av1 av1_cuvid av1_qsv ) (encoders: libaom-av1 librav1e libsvtav1 )
D.V... avrn Avid AVI Codec
DEVI.S avrp Avid 1:1 10-bit RGB Packer
D.V.L. avs AVS (Audio Video Standard) video
DEV.L. avs2 AVS2-P2/IEEE1857.4 (decoders: libdavs2 ) (encoders: libxavs2 )
D.V.L. avs3 AVS3-P2/IEEE1857.10 (decoders: libuavs3d )
DEVI.S avui Avid Meridien Uncompressed
DEVI.S ayuv Uncompressed packed MS 4:4:4:4
D.V.L. bethsoftvid Bethesda VID video
D.V.L. bfi Brute Force & Ignorance
D.V.L. binkvideo Bink video
D.VI.. bintext Binary text
DEVI.S bitpacked Bitpacked
DEVI.S bmp BMP (Windows and OS/2 bitmap)
D.V..S bmv_video Discworld II BMV video
D.VI.S brender_pix BRender PIX image
D.V.L. c93 Interplay C93
D.V.L. cavs Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)
D.V.L. cdgraphics CD Graphics video
D.V..S cdtoons CDToons video
D.VIL. cdxl Commodore CDXL video
DEV.L. cfhd GoPro CineForm HD
DEV.L. cinepak Cinepak
D.V.L. clearvideo Iterated Systems ClearVideo
DEVIL. cljr Cirrus Logic AccuPak
D.VI.S cllc Canopus Lossless Codec
D.V.L. cmv Electronic Arts CMV video (decoders: eacmv )
D.V... cpia CPiA video format
D.VILS cri Cintel RAW
D.V..S cscd CamStudio (decoders: camstudio )
D.VIL. cyuv Creative YUV (CYUV)
..V.LS daala Daala
D.VILS dds DirectDraw Surface image decoder
D.V.L. dfa Chronomaster DFA
DEV.LS dirac Dirac (encoders: vc2 )
DEVIL. dnxhd VC3/DNxHD
DEVI.S dpx DPX (Digital Picture Exchange) image
D.V.L. dsicinvideo Delphine Software International CIN video
DEVIL. dvvideo DV (Digital Video)
D.V..S dxa Feeble Files/ScummVM DXA
D.VI.S dxtory Dxtory
D.VIL. dxv Resolume DXV
D.V.L. escape124 Escape 124
D.V.L. escape130 Escape 130
DEVILS exr OpenEXR image
DEV..S ffv1 FFmpeg video codec #1
DEVI.S ffvhuff Huffyuv FFmpeg variant
D.V.L. fic Mirillis FIC
DEVI.S fits FITS (Flexible Image Transport System)
DEV..S flashsv Flash Screen Video v1
DEV.L. flashsv2 Flash Screen Video v2
D.V..S flic Autodesk Animator Flic video
DEV.L. flv1 FLV / Sorenson Spark / Sorenson H.263 (Flash Video) (decoders: flv ) (encoders: flv )
D.V..S fmvc FM Screen Capture Codec
D.VI.S fraps Fraps
D.VI.S frwu Forward Uncompressed
D.V.L. g2m Go2Meeting
D.V.L. gdv Gremlin Digital Video
D.V.L. gem GEM Raster image
DEV..S gif CompuServe GIF (Graphics Interchange Format)
DEV.L. h261 H.261
DEV.L. h263 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2
D.V.L. h263i Intel H.263
DEV.L. h263p H.263+ / H.263-1998 / H.263 version 2
DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_qsv h264_cuvid ) (encoders: libx264 libx264rgb h264_amf h264_mf h264_nvenc h264_qsv )
DEVIL. hap Vidvox Hap
DEV.L. hevc H.265 / HEVC (High Efficiency Video Coding) (decoders: hevc hevc_qsv hevc_cuvid ) (encoders: libx265 hevc_amf hevc_mf hevc_nvenc hevc_qsv )
D.V.L. hnm4video HNM 4 video
D.VIL. hq_hqa Canopus HQ/HQA
D.VIL. hqx Canopus HQX
DEVI.S huffyuv HuffYUV
D.VI.S hymt HuffYUV MT
D.V.L. idcin id Quake II CIN video (decoders: idcinvideo )
D.VI.. idf iCEDraw text
D.V.L. iff_ilbm IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN (decoders: iff )
D.V.L. imm4 Infinity IMM4
D.V.L. imm5 Infinity IMM5
D.V.L. indeo2 Intel Indeo 2
D.V.L. indeo3 Intel Indeo 3
D.V.L. indeo4 Intel Indeo Video Interactive 4
D.V.L. indeo5 Intel Indeo Video Interactive 5
D.V.L. interplayvideo Interplay MVE video
D.VIL. ipu IPU Video
DEVILS jpeg2000 JPEG 2000 (decoders: jpeg2000 libopenjpeg ) (encoders: jpeg2000 libopenjpeg )
DEVILS jpegls JPEG-LS
..VILS jpegxl JPEG XL
D.VIL. jv Bitmap Brothers JV video
D.V.L. kgv1 Kega Game Video
D.V.L. kmvc Karl Morton's video codec
D.VI.S lagarith Lagarith lossless
.EVI.S ljpeg Lossless JPEG
D.VI.S loco LOCO
D.V.L. lscr LEAD Screen Capture
D.VI.S m101 Matrox Uncompressed SD
D.V.L. mad Electronic Arts Madcow Video (decoders: eamad )
DEVI.S magicyuv MagicYUV video
D.VIL. mdec Sony PlayStation MDEC (Motion DECoder)
D.V.L. mimic Mimic
DEVIL. mjpeg Motion JPEG (decoders: mjpeg mjpeg_cuvid mjpeg_qsv ) (encoders: mjpeg mjpeg_qsv )
D.VIL. mjpegb Apple MJPEG-B
D.V.L. mmvideo American Laser Games MM Video
D.V.L. mobiclip MobiClip Video
D.V.L. motionpixels Motion Pixels video
DEV.L. mpeg1video MPEG-1 video (decoders: mpeg1video mpeg1_cuvid )
DEV.L. mpeg2video MPEG-2 video (decoders: mpeg2video mpegvideo mpeg2_qsv mpeg2_cuvid ) (encoders: mpeg2video mpeg2_qsv )
DEV.L. mpeg4 MPEG-4 part 2 (decoders: mpeg4 mpeg4_cuvid ) (encoders: mpeg4 libxvid )
D.V.L. msa1 MS ATC Screen
D.VI.S mscc Mandsoft Screen Capture Codec
D.V.L. msmpeg4v1 MPEG-4 part 2 Microsoft variant version 1
DEV.L. msmpeg4v2 MPEG-4 part 2 Microsoft variant version 2
DEV.L. msmpeg4v3 MPEG-4 part 2 Microsoft variant version 3 (decoders: msmpeg4 ) (encoders: msmpeg4 )
D.VI.S msp2 Microsoft Paint (MSP) version 2
D.V..S msrle Microsoft RLE
D.V.L. mss1 MS Screen 1
D.VIL. mss2 MS Windows Media Video V9 Screen
DEV.L. msvideo1 Microsoft Video 1
D.VI.S mszh LCL (LossLess Codec Library) MSZH
D.V.L. mts2 MS Expression Encoder Screen
D.V.L. mv30 MidiVid 3.0
D.VIL. mvc1 Silicon Graphics Motion Video Compressor 1
D.VIL. mvc2 Silicon Graphics Motion Video Compressor 2
D.V.L. mvdv MidiVid VQ
D.VIL. mvha MidiVid Archive Codec
D.V..S mwsc MatchWare Screen Capture Codec
D.V.L. mxpeg Mobotix MxPEG video
D.VIL. notchlc NotchLC
D.V.L. nuv NuppelVideo/RTJPEG
D.V.L. paf_video Amazing Studio Packed Animation File Video
DEVI.S pam PAM (Portable AnyMap) image
DEVI.S pbm PBM (Portable BitMap) image
DEVI.S pcx PC Paintbrush PCX image
DEVI.S pfm PFM (Portable FloatMap) image
DEVI.S pgm PGM (Portable GrayMap) image
DEVI.S pgmyuv PGMYUV (Portable GrayMap YUV) image
D.VI.S pgx PGX (JPEG2000 Test Format)
DEVI.S phm PHM (Portable HalfFloatMap) image
D.V.L. photocd Kodak Photo CD
D.VIL. pictor Pictor/PC Paint
D.VIL. pixlet Apple Pixlet
DEV..S png PNG (Portable Network Graphics) image
DEVI.S ppm PPM (Portable PixelMap) image
DEVIL. prores Apple ProRes (iCodec Pro) (encoders: prores prores_aw prores_ks )
D.VIL. prosumer Brooktree ProSumer Video
D.VI.S psd Photoshop PSD file
D.VIL. ptx V.Flash PTX image
D.VI.S qdraw Apple QuickDraw
DEVI.S qoi QOI (Quite OK Image)
D.V.L. qpeg Q-team QPEG
DEV..S qtrle QuickTime Animation (RLE) video
DEVI.S r10k AJA Kona 10-bit RGB Codec
DEVI.S r210 Uncompressed RGB 10-bit
D.V.L. rasc RemotelyAnywhere Screen Capture
DEVI.S rawvideo raw video
D.VIL. rl2 RL2 video
DEV.L. roq id RoQ video (decoders: roqvideo ) (encoders: roqvideo )
DEV.L. rpza QuickTime video (RPZA)
D.V..S rscc innoHeim/Rsupport Screen Capture Codec
DEV.L. rv10 RealVideo 1.0
DEV.L. rv20 RealVideo 2.0
D.V.L. rv30 RealVideo 3.0
D.V.L. rv40 RealVideo 4.0
D.V.L. sanm LucasArts SANM/SMUSH video
D.V.LS scpr ScreenPressor
D.V..S screenpresso Screenpresso
D.V.L. sga Digital Pictures SGA Video
DEVI.S sgi SGI image
D.VI.S sgirle SGI RLE 8-bit
D.VI.S sheervideo BitJazz SheerVideo
D.V.L. simbiosis_imx Simbiosis Interactive IMX Video
D.V.L. smackvideo Smacker video (decoders: smackvid )
DEV.L. smc QuickTime Graphics (SMC)
D.VIL. smvjpeg Sigmatel Motion Video
DEV.LS snow Snow
D.VIL. sp5x Sunplus JPEG (SP5X)
DEVIL. speedhq NewTek SpeedHQ
D.VI.S srgc Screen Recorder Gold Codec
DEVI.S sunrast Sun Rasterfile image
..V..S svg Scalable Vector Graphics
DEV.L. svq1 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
D.V.L. svq3 Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
DEVI.S targa Truevision Targa image
D.VI.S targa_y216 Pinnacle TARGA CineWave YUV16
D.V.L. tdsc TDSC
D.V.L. tgq Electronic Arts TGQ video (decoders: eatgq )
D.V.L. tgv Electronic Arts TGV video (decoders: eatgv )
DEV.L. theora Theora (encoders: libtheora )
D.VIL. thp Nintendo Gamecube THP video
D.V.L. tiertexseqvideo Tiertex Limited SEQ video
DEVI.S tiff TIFF image
D.VIL. tmv 8088flex TMV
D.V.L. tqi Electronic Arts TQI video (decoders: eatqi )
D.V.L. truemotion1 Duck TrueMotion 1.0
D.V.L. truemotion2 Duck TrueMotion 2.0
D.VIL. truemotion2rt Duck TrueMotion 2.0 Real Time
D.V..S tscc TechSmith Screen Capture Codec (decoders: camtasia )
D.V.L. tscc2 TechSmith Screen Codec 2
D.VIL. txd Renderware TXD (TeXture Dictionary) image
D.V.L. ulti IBM UltiMotion (decoders: ultimotion )
DEVI.S utvideo Ut Video
DEVI.S v210 Uncompressed 4:2:2 10-bit
D.VI.S v210x Uncompressed 4:2:2 10-bit
DEVI.S v308 Uncompressed packed 4:4:4
DEVI.S v408 Uncompressed packed QT 4:4:4:4
DEVI.S v410 Uncompressed 4:4:4 10-bit
D.V.L. vb Beam Software VB
D.VI.S vble VBLE Lossless Codec
DEV.L. vbn Vizrt Binary Image
D.V.L. vc1 SMPTE VC-1 (decoders: vc1 vc1_qsv vc1_cuvid )
D.V.L. vc1image Windows Media Video 9 Image v2
D.VIL. vcr1 ATI VCR1
D.VIL. vixl Miro VideoXL (decoders: xl )
D.V.L. vmdvideo Sierra VMD video
D.V..S vmnc VMware Screen Codec / VMware Video
D.V.L. vp3 On2 VP3
D.V.L. vp4 On2 VP4
D.V.L. vp5 On2 VP5
D.V.L. vp6 On2 VP6
D.V.L. vp6a On2 VP6 (Flash version, with alpha channel)
D.V.L. vp6f On2 VP6 (Flash version)
D.V.L. vp7 On2 VP7
DEV.L. vp8 On2 VP8 (decoders: vp8 libvpx vp8_cuvid vp8_qsv ) (encoders: libvpx )
DEV.L. vp9 Google VP9 (decoders: vp9 libvpx-vp9 vp9_cuvid vp9_qsv ) (encoders: libvpx-vp9 vp9_qsv )
..V.L. vvc H.266 / VVC (Versatile Video Coding)
D.V..S wcmv WinCAM Motion Video
DEVILS webp WebP (encoders: libwebp_anim libwebp )
DEV.L. wmv1 Windows Media Video 7
DEV.L. wmv2 Windows Media Video 8
D.V.L. wmv3 Windows Media Video 9
D.V.L. wmv3image Windows Media Video 9 Image
D.VIL. wnv1 Winnov WNV1
DEV..S wrapped_avframe AVFrame to AVPacket passthrough
D.V.L. ws_vqa Westwood Studios VQA (Vector Quantized Animation) video (decoders: vqavideo )
D.V.L. xan_wc3 Wing Commander III / Xan
D.V.L. xan_wc4 Wing Commander IV / Xxan
D.VI.. xbin eXtended BINary text
DEVI.S xbm XBM (X BitMap) image
DEVIL. xface X-face image
D.VI.S xpm XPM (X PixMap) image
DEVI.S xwd XWD (X Window Dump) image
DEVI.S y41p Uncompressed YUV 4:1:1 12-bit
D.VI.S ylc YUY2 Lossless Codec
D.V.L. yop Psygnosis YOP Video
DEVI.S yuv4 Uncompressed packed 4:2:0
D.V..S zerocodec ZeroCodec Lossless Video
DEVI.S zlib LCL (LossLess Codec Library) ZLIB
DEV..S zmbv Zip Motion Blocks Video
..AIL. 4gv 4GV (Fourth Generation Vocoder)
D.AIL. 8svx_exp 8SVX exponential
D.AIL. 8svx_fib 8SVX fibonacci
DEAIL. aac AAC (Advanced Audio Coding) (decoders: aac aac_fixed ) (encoders: aac aac_mf )
D.AIL. aac_latm AAC LATM (Advanced Audio Coding LATM syntax)
DEAIL. ac3 ATSC A/52A (AC-3) (decoders: ac3 ac3_fixed ) (encoders: ac3 ac3_fixed ac3_mf )
D.AIL. acelp.kelvin Sipro ACELP.KELVIN
D.AIL. adpcm_4xm ADPCM 4X Movie
DEAIL. adpcm_adx SEGA CRI ADX ADPCM
D.AIL. adpcm_afc ADPCM Nintendo Gamecube AFC
D.AIL. adpcm_agm ADPCM AmuseGraphics Movie AGM
D.AIL. adpcm_aica ADPCM Yamaha AICA
DEAIL. adpcm_argo ADPCM Argonaut Games
D.AIL. adpcm_ct ADPCM Creative Technology
D.AIL. adpcm_dtk ADPCM Nintendo Gamecube DTK
D.AIL. adpcm_ea ADPCM Electronic Arts
D.AIL. adpcm_ea_maxis_xa ADPCM Electronic Arts Maxis CDROM XA
D.AIL. adpcm_ea_r1 ADPCM Electronic Arts R1
D.AIL. adpcm_ea_r2 ADPCM Electronic Arts R2
D.AIL. adpcm_ea_r3 ADPCM Electronic Arts R3
D.AIL. adpcm_ea_xas ADPCM Electronic Arts XAS
DEAIL. adpcm_g722 G.722 ADPCM (decoders: g722 ) (encoders: g722 )
DEAIL. adpcm_g726 G.726 ADPCM (decoders: g726 ) (encoders: g726 )
DEAIL. adpcm_g726le G.726 ADPCM little-endian (decoders: g726le ) (encoders: g726le )
D.AIL. adpcm_ima_acorn ADPCM IMA Acorn Replay
DEAIL. adpcm_ima_alp ADPCM IMA High Voltage Software ALP
DEAIL. adpcm_ima_amv ADPCM IMA AMV
D.AIL. adpcm_ima_apc ADPCM IMA CRYO APC
DEAIL. adpcm_ima_apm ADPCM IMA Ubisoft APM
D.AIL. adpcm_ima_cunning ADPCM IMA Cunning Developments
D.AIL. adpcm_ima_dat4 ADPCM IMA Eurocom DAT4
D.AIL. adpcm_ima_dk3 ADPCM IMA Duck DK3
D.AIL. adpcm_ima_dk4 ADPCM IMA Duck DK4
D.AIL. adpcm_ima_ea_eacs ADPCM IMA Electronic Arts EACS
D.AIL. adpcm_ima_ea_sead ADPCM IMA Electronic Arts SEAD
D.AIL. adpcm_ima_iss ADPCM IMA Funcom ISS
D.AIL. adpcm_ima_moflex ADPCM IMA MobiClip MOFLEX
D.AIL. adpcm_ima_mtf ADPCM IMA Capcom's MT Framework
D.AIL. adpcm_ima_oki ADPCM IMA Dialogic OKI
DEAIL. adpcm_ima_qt ADPCM IMA QuickTime
D.AIL. adpcm_ima_rad ADPCM IMA Radical
D.AIL. adpcm_ima_smjpeg ADPCM IMA Loki SDL MJPEG
DEAIL. adpcm_ima_ssi ADPCM IMA Simon & Schuster Interactive
DEAIL. adpcm_ima_wav ADPCM IMA WAV
DEAIL. adpcm_ima_ws ADPCM IMA Westwood
DEAIL. adpcm_ms ADPCM Microsoft
D.AIL. adpcm_mtaf ADPCM MTAF
D.AIL. adpcm_psx ADPCM Playstation
D.AIL. adpcm_sbpro_2 ADPCM Sound Blaster Pro 2-bit
D.AIL. adpcm_sbpro_3 ADPCM Sound Blaster Pro 2.6-bit
D.AIL. adpcm_sbpro_4 ADPCM Sound Blaster Pro 4-bit
DEAIL. adpcm_swf ADPCM Shockwave Flash
D.AIL. adpcm_thp ADPCM Nintendo THP
D.AIL. adpcm_thp_le ADPCM Nintendo THP (Little-Endian)
D.AIL. adpcm_vima LucasArts VIMA audio
D.AIL. adpcm_xa ADPCM CDROM XA
DEAIL. adpcm_yamaha ADPCM Yamaha
D.AIL. adpcm_zork ADPCM Zork
DEAI.S alac ALAC (Apple Lossless Audio Codec)
DEAIL. amr_nb AMR-NB (Adaptive Multi-Rate NarrowBand) (decoders: amrnb libopencore_amrnb ) (encoders: libopencore_amrnb )
DEAIL. amr_wb AMR-WB (Adaptive Multi-Rate WideBand) (decoders: amrwb libopencore_amrwb ) (encoders: libvo_amrwbenc )
D.AI.S ape Monkey's Audio
DEAIL. aptx aptX (Audio Processing Technology for Bluetooth)
DEAIL. aptx_hd aptX HD (Audio Processing Technology for Bluetooth)
D.AIL. atrac1 ATRAC1 (Adaptive TRansform Acoustic Coding)
D.AIL. atrac3 ATRAC3 (Adaptive TRansform Acoustic Coding 3)
D.AI.S atrac3al ATRAC3 AL (Adaptive TRansform Acoustic Coding 3 Advanced Lossless)
D.AIL. atrac3p ATRAC3+ (Adaptive TRansform Acoustic Coding 3+) (decoders: atrac3plus )
D.AI.S atrac3pal ATRAC3+ AL (Adaptive TRansform Acoustic Coding 3+ Advanced Lossless) (decoders: atrac3plusal )
D.AIL. atrac9 ATRAC9 (Adaptive TRansform Acoustic Coding 9)
D.AIL. avc On2 Audio for Video Codec (decoders: on2avc )
D.AIL. binkaudio_dct Bink Audio (DCT)
D.AIL. binkaudio_rdft Bink Audio (RDFT)
D.AIL. bmv_audio Discworld II BMV audio
..AIL. celt Constrained Energy Lapped Transform (CELT)
..AIL. codec2 codec2 (very low bitrate speech codec)
DEAIL. comfortnoise RFC 3389 Comfort Noise
D.AIL. cook Cook / Cooker / Gecko (RealAudio G2)
D.AIL. derf_dpcm DPCM Xilam DERF
DEA.L. dfpwm DFPWM (Dynamic Filter Pulse Width Modulation)
D.AIL. dolby_e Dolby E
D.AIL. dsd_lsbf DSD (Direct Stream Digital), least significant bit first
D.AIL. dsd_lsbf_planar DSD (Direct Stream Digital), least significant bit first, planar
D.AIL. dsd_msbf DSD (Direct Stream Digital), most significant bit first
D.AIL. dsd_msbf_planar DSD (Direct Stream Digital), most significant bit first, planar
D.AIL. dsicinaudio Delphine Software International CIN audio
D.AIL. dss_sp Digital Speech Standard - Standard Play mode (DSS SP)
D.AI.S dst DST (Direct Stream Transfer)
DEAILS dts DCA (DTS Coherent Acoustics) (decoders: dca ) (encoders: dca )
D.AIL. dvaudio DV audio
DEAIL. eac3 ATSC A/52B (AC-3, E-AC-3)
D.AIL. evrc EVRC (Enhanced Variable Rate Codec)
D.AIL. fastaudio MobiClip FastAudio
DEAI.S flac FLAC (Free Lossless Audio Codec)
DEAIL. g723_1 G.723.1
D.AIL. g729 G.729
D.AIL. gremlin_dpcm DPCM Gremlin
DEAIL. gsm GSM (decoders: gsm libgsm ) (encoders: libgsm )
DEAIL. gsm_ms GSM Microsoft variant (decoders: gsm_ms libgsm_ms ) (encoders: libgsm_ms )
D.AIL. hca CRI HCA
D.AIL. hcom HCOM Audio
D.AIL. iac IAC (Indeo Audio Coder)
DEAIL. ilbc iLBC (Internet Low Bitrate Codec) (decoders: ilbc libilbc ) (encoders: libilbc )
D.AIL. imc IMC (Intel Music Coder)
D.AIL. interplay_dpcm DPCM Interplay
D.AIL. interplayacm Interplay ACM
D.AIL. mace3 MACE (Macintosh Audio Compression/Expansion) 3:1
D.AIL. mace6 MACE (Macintosh Audio Compression/Expansion) 6:1
D.AIL. metasound Voxware MetaSound
DEA..S mlp MLP (Meridian Lossless Packing)
D.AIL. mp1 MP1 (MPEG audio layer 1) (decoders: mp1 mp1float )
DEAIL. mp2 MP2 (MPEG audio layer 2) (decoders: mp2 mp2float ) (encoders: mp2 mp2fixed libtwolame )
DEAIL. mp3 MP3 (MPEG audio layer 3) (decoders: mp3float mp3 ) (encoders: libmp3lame libshine mp3_mf )
D.AIL. mp3adu ADU (Application Data Unit) MP3 (MPEG audio layer 3) (decoders: mp3adufloat mp3adu )
D.AIL. mp3on4 MP3onMP4 (decoders: mp3on4float mp3on4 )
D.AI.S mp4als MPEG-4 Audio Lossless Coding (ALS) (decoders: als )
..A.L. mpegh_3d_audio MPEG-H 3D Audio
D.AIL. msnsiren MSN Siren
D.AIL. musepack7 Musepack SV7 (decoders: mpc7 )
D.AIL. musepack8 Musepack SV8 (decoders: mpc8 )
DEAIL. nellymoser Nellymoser Asao
DEAIL. opus Opus (Opus Interactive Audio Codec) (decoders: opus libopus ) (encoders: opus libopus )
D.AIL. paf_audio Amazing Studio Packed Animation File Audio
DEAIL. pcm_alaw PCM A-law / G.711 A-law
DEAI.S pcm_bluray PCM signed 16|20|24-bit big-endian for Blu-ray media
DEAI.S pcm_dvd PCM signed 20|24-bit big-endian
D.AI.S pcm_f16le PCM 16.8 floating point little-endian
D.AI.S pcm_f24le PCM 24.0 floating point little-endian
DEAI.S pcm_f32be PCM 32-bit floating point big-endian
DEAI.S pcm_f32le PCM 32-bit floating point little-endian
DEAI.S pcm_f64be PCM 64-bit floating point big-endian
DEAI.S pcm_f64le PCM 64-bit floating point little-endian
D.AI.S pcm_lxf PCM signed 20-bit little-endian planar
DEAIL. pcm_mulaw PCM mu-law / G.711 mu-law
DEAI.S pcm_s16be PCM signed 16-bit big-endian
DEAI.S pcm_s16be_planar PCM signed 16-bit big-endian planar
DEAI.S pcm_s16le PCM signed 16-bit little-endian
DEAI.S pcm_s16le_planar PCM signed 16-bit little-endian planar
DEAI.S pcm_s24be PCM signed 24-bit big-endian
DEAI.S pcm_s24daud PCM D-Cinema audio signed 24-bit
DEAI.S pcm_s24le PCM signed 24-bit little-endian
DEAI.S pcm_s24le_planar PCM signed 24-bit little-endian planar
DEAI.S pcm_s32be PCM signed 32-bit big-endian
DEAI.S pcm_s32le PCM signed 32-bit little-endian
DEAI.S pcm_s32le_planar PCM signed 32-bit little-endian planar
DEAI.S pcm_s64be PCM signed 64-bit big-endian
DEAI.S pcm_s64le PCM signed 64-bit little-endian
DEAI.S pcm_s8 PCM signed 8-bit
DEAI.S pcm_s8_planar PCM signed 8-bit planar
D.AI.S pcm_sga PCM SGA
DEAI.S pcm_u16be PCM unsigned 16-bit big-endian
DEAI.S pcm_u16le PCM unsigned 16-bit little-endian
DEAI.S pcm_u24be PCM unsigned 24-bit big-endian
DEAI.S pcm_u24le PCM unsigned 24-bit little-endian
DEAI.S pcm_u32be PCM unsigned 32-bit big-endian
DEAI.S pcm_u32le PCM unsigned 32-bit little-endian
DEAI.S pcm_u8 PCM unsigned 8-bit
DEAIL. pcm_vidc PCM Archimedes VIDC
D.AIL. qcelp QCELP / PureVoice
D.AIL. qdm2 QDesign Music Codec 2
D.AIL. qdmc QDesign Music
DEAIL. ra_144 RealAudio 1.0 (14.4K) (decoders: real_144 ) (encoders: real_144 )
D.AIL. ra_288 RealAudio 2.0 (28.8K) (decoders: real_288 )
D.AI.S ralf RealAudio Lossless
DEAIL. roq_dpcm DPCM id RoQ
DEAI.S s302m SMPTE 302M
DEAIL. sbc SBC (low-complexity subband codec)
D.AIL. sdx2_dpcm DPCM Squareroot-Delta-Exact
D.AI.S shorten Shorten
D.AIL. sipr RealAudio SIPR / ACELP.NET
D.AIL. siren Siren
D.AIL. smackaudio Smacker audio (decoders: smackaud )
..AIL. smv SMV (Selectable Mode Vocoder)
D.AIL. sol_dpcm DPCM Sol
DEAI.. sonic Sonic
.EAI.. sonicls Sonic lossless
DEAIL. speex Speex (decoders: speex libspeex ) (encoders: libspeex )
D.A..S tak TAK (Tom's lossless Audio Kompressor)
DEA..S truehd TrueHD
D.AIL. truespeech DSP Group TrueSpeech
DEAI.S tta TTA (True Audio)
D.AIL. twinvq VQF TwinVQ
D.AIL. vmdaudio Sierra VMD audio
DEAIL. vorbis Vorbis (decoders: vorbis libvorbis ) (encoders: vorbis libvorbis )
D.AI.. wavesynth Wave synthesis pseudo-codec
DEAILS wavpack WavPack
D.AIL. westwood_snd1 Westwood Audio (SND1) (decoders: ws_snd1 )
D.AI.S wmalossless Windows Media Audio Lossless
D.AIL. wmapro Windows Media Audio 9 Professional
DEAIL. wmav1 Windows Media Audio 1
DEAIL. wmav2 Windows Media Audio 2
D.AIL. wmavoice Windows Media Audio Voice
D.AIL. xan_dpcm DPCM Xan
D.AIL. xma1 Xbox Media Audio 1
D.AIL. xma2 Xbox Media Audio 2
..D... bin_data binary data
..D... dvd_nav_packet DVD Nav packet
..D... epg Electronic Program Guide
..D... klv SMPTE 336M Key-Length-Value (KLV) metadata
..D... mpegts raw MPEG-TS stream
..D... otf OpenType font
..D... scte_35 SCTE 35 Message Queue
..D... timed_id3 timed ID3 metadata
..D... ttf TrueType font
..S... arib_caption ARIB STD-B24 caption
DES... ass ASS (Advanced SSA) subtitle (decoders: ssa ass ) (encoders: ssa ass )
DES... dvb_subtitle DVB subtitles (decoders: dvbsub ) (encoders: dvbsub )
D.S... dvb_teletext DVB teletext (decoders: libzvbi_teletextdec )
DES... dvd_subtitle DVD subtitles (decoders: dvdsub ) (encoders: dvdsub )
D.S... eia_608 EIA-608 closed captions (decoders: cc_dec )
D.S... hdmv_pgs_subtitle HDMV Presentation Graphic Stream subtitles (decoders: pgssub )
..S... hdmv_text_subtitle HDMV Text subtitle
D.S... jacosub JACOsub subtitle
D.S... microdvd MicroDVD subtitle
DES... mov_text MOV text
D.S... mpl2 MPL2 subtitle
D.S... pjs PJS (Phoenix Japanimation Society) subtitle
D.S... realtext RealText subtitle
D.S... sami SAMI subtitle
..S... srt SubRip subtitle with embedded timing
..S... ssa SSA (SubStation Alpha) subtitle
D.S... stl Spruce subtitle format
DES... subrip SubRip subtitle (decoders: srt subrip ) (encoders: srt subrip )
D.S... subviewer SubViewer subtitle
D.S... subviewer1 SubViewer v1 subtitle
DES... text raw UTF-8 text
.ES... ttml Timed Text Markup Language
D.S... vplayer VPlayer subtitle
DES... webvtt WebVTT subtitle
DES... xsub XSUB